code: def upgrade_settings(
      self, setting_values, variable_revision_number, module_name
  ):
      if variable_revision_number == 1:
          # Add the wellformat setting
          setting_values += [WF_NAME]
          variable_revision_number = 2
      return setting_values, variable_revision_number
  
file_path: CellProfiler/src/frontend/cellprofiler/modules/displayplatemap.py
imports: import numpy
  from cellprofiler_core.constants.measurement import IMAGE
  from cellprofiler_core.constants.module import USING_METADATA_HELP_REF
  from cellprofiler_core.module import Module
  from cellprofiler_core.setting import Measurement
  from cellprofiler_core.setting.choice import Choice
  from cellprofiler_core.setting.subscriber import LabelSubscriber
  from cellprofiler_core.setting.text import Text
label_desc: Use image node_id 8 for calling the DisplayPlatemap obj's underlying member method code with example usage: obj.upgrade_settings(setting_values, variable_revision_number, module_name) and returns: setting_values,  variable_revision_number